{"id":"CVE-2026-9639","sourceIdentifier":"security@ubuntu.com","published":"2026-06-26T16:16:37.143","lastModified":"2026-10-25T17:10:00.197","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field."},{"lang":"es","value":"Desreferencia de puntero nulo en CreateCustomVolumeFromBackup en LXD hasta la versión 6.8 y 5.21 en Linux permite a un usuario autenticado con permisos can_create_storage_volumes causar una denegación de servicio mediante un tarball de respaldo de volumen personalizado especialmente diseñado que omite el campo de instantánea expires_at."}],"affected":[{"source":"security@ubuntu.com","affectedData":[{"vendor":"Canonical","product":"LXD","defaultStatus":"unaffected","packageName":"LXD","platforms":["Linux"],"repo":"https://github.com/canonical/lxd","versions":[{"version":"5.21.0","lessThan":"5.21.5","versionType":"semver","status":"affected"},{"version":"6.0","lessThan":"6.9","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@ubuntu.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-26T16:01:50.334142Z","id":"CVE-2026-9639","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security@ubuntu.com","type":"Secondary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0.0","versionEndExcluding":"5.21.5","matchCriteriaId":"39995265-6759-42FE-BBAD-9062C9928A9B"},{"vulnerable":true,"criteria":"cpe:2.3:a:canonical:lxd:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.9","matchCriteriaId":"C25E18E8-CDDF-4F3A-A80E-F27456981A4B"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*","matchCriteriaId":"703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}]}]}],"references":[{"url":"https://github.com/canonical/lxd/pull/18320","source":"security@ubuntu.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/canonical/lxd/pull/18390","source":"security@ubuntu.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8","source":"security@ubuntu.com","tags":["Exploit","Patch","Vendor Advisory"]},{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Patch","Vendor Advisory"]}]}